[css] Label on the left side instead above an input field

I am sure you would've already found your answer... here is the solution I derived at.

That's my CSS.

.field, .actions {
    margin-bottom: 15px;
  }
  .field label {
    float: left;
    width: 30%;
    text-align: right;
    padding-right: 10px;
    margin: 5px 0px 5px 0px;
  }
  .field input {
    width: 70%;
    margin: 0px;
  }

And my HTML...

<h1>New customer</h1>
<div class="container form-center">
    <form accept-charset="UTF-8" action="/customers" class="new_customer" id="new_customer" method="post">
    <div style="margin:0;padding:0;display:inline"></div>

  <div class="field">
    <label for="customer_first_name">First name</label>
    <input class="form-control" id="customer_first_name" name="customer[first_name]" type="text" />
  </div>
  <div class="field">
    <label for="customer_last_name">Last name</label>
    <input class="form-control" id="customer_last_name" name="customer[last_name]" type="text" />
  </div>
  <div class="field">
    <label for="customer_addr1">Addr1</label>
    <input class="form-control" id="customer_addr1" name="customer[addr1]" type="text" />
  </div>
  <div class="field">
    <label for="customer_addr2">Addr2</label>
    <input class="form-control" id="customer_addr2" name="customer[addr2]" type="text" />
  </div>
  <div class="field">
    <label for="customer_city">City</label>
    <input class="form-control" id="customer_city" name="customer[city]" type="text" />
  </div>
  <div class="field">
    <label for="customer_pincode">Pincode</label>
    <input class="form-control" id="customer_pincode" name="customer[pincode]" type="text" />
  </div>
  <div class="field">
    <label for="customer_homephone">Homephone</label>
    <input class="form-control" id="customer_homephone" name="customer[homephone]" type="text" />
  </div>
  <div class="field">
    <label for="customer_mobile">Mobile</label>
    <input class="form-control" id="customer_mobile" name="customer[mobile]" type="text" />
  </div>
  <div class="actions">
    <input class="btn btn-primary btn-large btn-block" name="commit" type="submit" value="Create Customer" />
  </div>
</form>
</div>

You can see the working example here... http://jsfiddle.net/s6Ujm/

PS: I am a beginner too, pro designers... feel free share your reviews.